<template>
  <div>
    <h1 v-text="msg" ref="title"></h1>
    <button @click="showDOM" ref="showDOM">点我输出上方的dom元素</button>
    <School ref="sch" />
  </div>
</template>

<script>
//引入School组件
import School from "./components/School";
export default {
  name: "App",
  components: { School },
  data() {
    return {
      msg: "欢迎学习Vue",
    };
  },

  methods: {
    showDOM() {
      console.log(this.$refs.title);//真实DOm元素
      console.log(this.$refs.btn);//真实DOM元年苏
      console.log(this.$refs.sch);//School组件的实例对象(vc)
    },
  },
};
</script>

<style>
</style>